// Copyright (C) 2025 Kumo inc.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

#ifndef ROTHAR_PEGTL_CONTRIB_SEPARATED_SEQ_HPP
#define ROTHAR_PEGTL_CONTRIB_SEPARATED_SEQ_HPP

#include "../config.hpp"

#include "../internal/seq.hpp"
#include "../type_list.hpp"

namespace rothar
{
   namespace internal
   {
      template< typename... >
      struct sep;

      template< typename... Ts, typename S, typename Rule, typename... Rules >
      struct sep< type_list< Ts... >, S, Rule, Rules... >
         : sep< type_list< Ts..., Rule, S >, S, Rules... >
      {};

      template< typename... Ts, typename S, typename Rule >
      struct sep< type_list< Ts... >, S, Rule >
      {
         using type = seq< Ts..., Rule >;
      };

      template< typename S >
      struct sep< type_list<>, S >
      {
         using type = seq<>;
      };

   }  // namespace internal

   template< typename S, typename... Rules >
   struct separated_seq
      : internal::sep< type_list<>, S, Rules... >::type
   {};

}  // namespace rothar

#endif
